'This Is What We've Been Fighting For.' British Veteran Remembers D-Day

Former Royal Navy officer John Roberts is one of Britain's last-remaining D-Day veterans (Credit: AFP)

John Roberts was a 20-year-old British Royal Navy officer during the D-Day landings 80 years ago and remembers making light of the daring mission at the time.

The former sub-lieutenant was aboard the destroyer HMS Serapis during the Allied invasion of France on June 6, 1944, protecting minesweepers during the crossing of the Channel.